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An omni-directional mobile intelligent wheelchair bed

An omnidirectional mobile and intelligent technology, which can be used in patient chairs or special transportation tools, vehicle rescue, medical transportation, etc., and can solve problems such as reduced user experience, low efficiency, and inconsistent with the original intention of service robot design. Enhanced independent operability, reduced work intensity, and better user experience

Active Publication Date: 2019-01-15
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing wheelchair beds use unsuspended mecanum wheels, and then move in all directions. Due to the inherent characteristics of the mecanum wheels, they will cause slippage when starting and stopping. There will be gaps in the docking of the body; there are also some wheelchair beds that are driven by two wheels with inflatable wheels, but it needs to adjust the posture many times when docking with the ordinary bed body, which is inefficient. It will reduce user experience and does not meet the original design intention of service robots

Method used

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  • An omni-directional mobile intelligent wheelchair bed
  • An omni-directional mobile intelligent wheelchair bed
  • An omni-directional mobile intelligent wheelchair bed

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0025] see figure 1 , figure 2 , image 3 , the present invention is designed to be applied to the intelligent wheelchair bed of old-age care for the disabled and medical care industries, including a seat frame 1, two side rails 2, four sets of independent suspension-steering-drive wheel sets 3, and a chassis 4.

[0026] The composition of the intelligent wheelchair bed is as follows. Seat frame 1 is made of back frame 11, hip frame 12, leg frame 13, foot frame 14, parallelogram 15, two leg push rod motors 16, two hip push rod motors 17, back push rod motor 18; each set of side guardrails 2 is composed of two sets of linear rails 21, side push rod motors 22 and side handrails 23; each set of independent suspension-steering-drive wheel sets 3 consists of a suspension mechanism 31, a steering mechanism 32 and a drive mechanism 33 Composition...

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Abstract

The invention relates to an omni-directional mobile intelligent wheelchair bed, which is based on four-wheel omni-directional independent driving-steering platform, including seat frame, two side rails, four sets of independent suspension steering-drive wheel set and chassis. The seat frame consists of five parts: back, buttocks, legs, feet and side rails. Each part is driven by an electric motor,and the reciprocating motion of the push rod motor makes the bed shape automatically converted. The lateral push-rod motor mounted on the chassis and the side armrest constitute three links, which can only move in the vertical degree of freedom through the overconstraint of two sets of linear rails. The independent suspension steering-drive wheel set is composed of a suspension mechanism, a steering mechanism and a driving mechanism. The suspension mechanism plays a shock-absorbing effect through a four-bar linkage deformation compression shock absorber. The steering mechanism applies a driving force to the hub motor for changing the direction of travel. The drive mechanism controls the hub motor to provide forward driving force through the hub motor driver.

Description

technical field [0001] The invention is based on a four-wheel omnidirectional independent drive-steering platform, and is practically applied to an intelligent wheelchair bed for the elderly, the disabled and medical care. The intelligent wheelchair bed has the characteristics of flexibility, compactness, stable driving and all-round movement, and is suitable for movement on irregular ground and densely populated environments. Background technique [0002] Intelligent wheelchair bed is a research direction for the elderly, the disabled and medical care. Among the existing old-age care products for the disabled and medical care products, most of them are nursing beds and electric wheelchairs, and wheelchair beds are rare. The existing nursing beds have a deformation function to assist users. The driving force is divided into manpower and motor drive. However, the bed body driven by the motor is too large and needs the assistance of a nursing person when moving indoors, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61G5/08A61G5/10
CPCA61G5/0833A61G5/1067
Inventor 李秀智贾桐贾松敏
Owner BEIJING UNIV OF TECH
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